linux-kernel - Re: net/sunrpc/stats.c:204: undefined reference to `_GLOBAL_OFFSET_TABLE

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Date:   Thu, 6 Oct 2016 19:27:42 +0800
From:   Fengguang Wu <fengguang.wu@...el.com>
To:     Nicolas Pitre <nicolas.pitre@...aro.org>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Michal Simek <monstr@...str.eu>
Subject: Re: net/sunrpc/stats.c:204: undefined reference to
 `_GLOBAL_OFFSET_TABLE_'

On Wed, Oct 05, 2016 at 10:43:45PM -0400, Nicolas Pitre wrote:
>On Thu, 6 Oct 2016, Fengguang Wu wrote:
>
>> On Tue, Oct 04, 2016 at 09:08:27AM -0400, Nicolas Pitre wrote:
>> >On Tue, 4 Oct 2016, Fengguang Wu wrote:
>> >
>> > > CC Michal. It looks like a microblaze specific error. I'll blacklist
>> > > this old error on microblaze if there are no good solutions.
>> >
>> >It doesn't exhibit any build error on my end.  Which is why I suggested
>> >that you verify the integrity of your toolchain on your end.
>>
>> OK, let me try upgrade the debian package first.
>> What's your toolchain version?
>
>The one that was installed by make.cross from the reproduction
>instructions included in the error report below. Currently:
>
>gcc version 4.9.0
>GNU ld (GNU Binutils) 2.24

Ah yes. It's a problem with the gcc 6.2 I built recently:

% gcc-6.2.0/microblaze-linux/bin/microblaze-linux-gcc -v
Using built-in specs.
COLLECT_GCC=gcc-6.2.0/microblaze-linux/bin/microblaze-linux-gcc
COLLECT_LTO_WRAPPER=/opt/kbuild/opt/cross/gcc-6.2.0/microblaze-linux/bin/../libexec/gcc/microblaze-linux/6.2.0/lto-wrapper
Target: microblaze-linux
Configured with: /c/gcc/configure --target=microblaze-linux --enable-targets=all --prefix=/opt/cross/gcc-6.2.0/microblaze-linux --enable-languages=c --without-headers --disable-bootstrap --enable-sjlj-exceptions --with-system-libunwind --disable-nls --disable-threads --disable-shared --disable-libmudflap --disable-libssp --disable-libgomp --disable-decimal-float --disable-libquadmath --disable-libatomic --disable-libcc1 --disable-libmpx --enable-checking=release --enable-lto --enable-plugin
Thread model: single
gcc version 6.2.0 (GCC)

The below 2 both works. I'll revert to the working gcc 4.9.

% gcc-4.9.0-nolibc/microblaze-linux/bin/microblaze-linux-gcc -v
Using built-in specs.
COLLECT_GCC=gcc-4.9.0-nolibc/microblaze-linux/bin/microblaze-linux-gcc
COLLECT_LTO_WRAPPER=/opt/kbuild/opt/cross/gcc-4.9.0-nolibc/microblaze-linux/bin/../libexec/gcc/microblaze-linux/4.9.0/lto-wrapper
Target: microblaze-linux
Configured with: /home/tony/buildall/src/gcc/configure --target=microblaze-linux --host=x86_64-linux-gnu --build=x86_64-linux-gnu --enable-targets=all --prefix=/opt/cross/gcc-4.9.0-nolibc/microblaze-linux/ --enable-languages=c --with-newlib --without-headers --enable-sjlj-exceptions --with-system-libunwind --disable-nls --disable-threads --disable-shared --disable-libmudflap --disable-libssp --disable-libgomp --disable-decimal-float --enable-checking=release --with-mpfr=/home/tony/buildall/src/sys-x86_64 --with-gmp=/home/tony/buildall/src/sys-x86_64 --disable-bootstrap
Thread model: single
gcc version 4.9.0 (GCC)

% gcc-4.6.4-nolibc/microblaze-xilinx-elf/bin/microblaze-xilinx-elf-gcc -v
Using built-in specs.
COLLECT_GCC=gcc-4.6.4-nolibc/microblaze-xilinx-elf/bin/microblaze-xilinx-elf-gcc
COLLECT_LTO_WRAPPER=/opt/kbuild/opt/cross/gcc-4.6.4-nolibc/microblaze-xilinx-elf/bin/../libexec/gcc/microblaze-xilinx-elf/4.6.4/lto-wrapper
Target: microblaze-xilinx-elf
Configured with: /home/buildbot/plgx_bld/xils005/2012_12_19/toolchains/lin64-microblaze-xilinx-elf/crosstool-ng/targets/src/gcc-4.6.1/configure --build=x86_64-build_unknown-linux-gnu --host=x86_64-build_unknown-linux-gnu --target=microblaze-xilinx-elf --prefix=/home/buildbot/plgx_bld/xils005/2012_12_19/toolchains/lin64-microblaze-xilinx-elf/tool-build --with-local-prefix=/home/buildbot/plgx_bld/xils005/2012_12_19/toolchains/lin64-microblaze-xilinx-elf/tool-build/microblaze-xilinx-elf/sysroot --disable-libmudflap --with-sysroot=/home/buildbot/plgx_bld/xils005/2012_12_19/toolchains/lin64-microblaze-xilinx-elf/tool-build/microblaze-xilinx-elf/sysroot --with-newlib --enable-threads=no --disable-shared --with-pkgversion='crosstool-NG 1.15.3' --disable-__cxa_atexit --with-gmp=/home/buildbot/plgx_bld/xils005/2012_12_19/toolchains/lin64-microblaze-xilinx-elf/crosstool-ng/targets/microblaze-xilinx-elf/buildtools --with-mpfr=/home/buildbot/plgx_bld/xils005/2012_12_19/toolchains/lin64-microblaze-xilinx-elf/crosstool-ng/targets/microblaze-xilinx-elf/buildtools --with-mpc=/home/buildbot/plgx_bld/xils005/2012_12_19/toolchains/lin64-microblaze-xilinx-elf/crosstool-ng/targets/microblaze-xilinx-elf/buildtools --with-ppl=no --with-cloog=no --with-libelf=no --disable-lto --enable-target-optspace --without-long-double-128 --disable-libgomp --disable-libmudflap --disable-nls --disable-libstdcxx-pch --with-system-zlib --enable-multilib --enable-languages=c,c++
Thread model: single
gcc version 4.6.4 20120924 (prerelease) (crosstool-NG 1.15.3)

Thanks,
Fengguang